percussive rotary drilling technology
percussive rotary drilling technology
冲击式旋转钻井技术
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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The percussive - rotary drilling technology is one of the most effective ways to solve the drilling difficulties in hard rock in recent years. The technology has a good application prospect.
旋冲钻井技术近年来已成为石油钻井界广泛关注的热点研究课题，被认为是解决深井硬地层钻进难题的最有效方法之一，具有良好的应用前景。
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